Resistor Color Code Lab

Educational decoder, encoder & practice lab

Teaching model: decodes common 4-, 5-, and 6-band resistor markings. Color-code availability can vary by resistor family and manufacturer; always verify the actual part datasheet for tolerance, TCR, power, voltage, and environmental limits.
Resistor Band Format:

Click any colored band above or use the buttons below to change its value.

Calculated Resistance Value
4.7 kΩ ±5%
Nominal tolerance interval: 4.465 kΩ to 4.935 kΩ
Tolerance Range Spec
Min: 4.46 kΩ Nominal Max: 4.94 kΩ

This interval applies only the marked tolerance around nominal resistance. Actual resistance can also vary with temperature, load, aging, construction, and the component datasheet.

Calculation Formula Breakdown

Combined Formula Expression:
(4 × 10 + 7) × 100 = 4,700 Ω ±5%